en-ru -- непонятки

[grey-hound-me.livejournal.com]

Имеется вот такой кусок текста:
General Electric Company was incorporated on April 15th, 1892 as a merger between Edison General Electric Company (created in 1872) and the Thomson-Houston Electric Company. At the time the reason for the merger was that the expansion of both companies meant increasing difficulties for either company to produce complete electrical installations relying solely on their own patents and technologies. The new company had three to railway companies, lighting and mining. Their first report illustrated the advances that the company had made in licensing, and providing better services to their clientele: “The largest lighting generators in use in February 1st, 1892 were capable of supplying only 2,000 incandescent lights each. Many local lighting stations are being equipped with steam engines directly coupled to such machines, giving a capacity of about 25,000 incandescent lights from each engine,” the report said.

Заклинило меня на выделенном предложении. То ли там чего-то не хватает, то ли у меня ступор: не могу понять к чему относится three. Буду весьма признательна тем, кто выскажет свое мнение.

Comments

[starik-f.livejournal.com]

Вы упустили вот это: "relying solely on their own patents and technologies". То есть "по отдельности каждой из двух компаний было бы сложно наладить производство электроустановок только на основе имеющихся у них патентов и технологий".

[grey-hound-me.livejournal.com]

И что? Это помогает понять, к чему относится three?